資源描述:
《松遼盆地北部青一段含油泥頁巖儲集特征淺析.pdf》由會員上傳分享,免費在線閱讀,更多相關內(nèi)容在行業(yè)資料-天天文庫。
1、第26卷第5期巖性油氣藏Vo1.26No.52014年1O月UITH0L0GICRESERVOIRS0et.20l4文章編號:1673—8926(2014)05—0064—05松遼盆地北部青一段含油泥頁巖儲集特征淺析柳波,王蕃,冉清昌1,37李梅,戴春雷,王猛(1.東北石油大學非常規(guī)油氣成藏與開發(fā)省部共建國家重點實驗室培育基地,黑龍江大慶163318;2.大慶鉆探工程公司測井公司,黑龍江大慶163412;3.中國石油大慶油田有限責任公司勘探開發(fā)研究院,黑龍江大慶163318)摘要:儲集性能的好壞是影響泥頁巖含油氣性的關鍵因素。利用
2、巖心觀察、薄片鑒定、掃描電鏡及等溫吸附等手段,對松遼盆地北部青一段含油泥頁巖進行了巖石學特征和儲集特征研究,對其儲集物性進行了初步評價。結(jié)果表明,青一段泥頁巖儲層的巖石類型主要包括舍粉砂泥巖、粉砂質(zhì)泥巖、含灰質(zhì)泥巖及粉砂巖等,其中粉砂質(zhì)泥巖、含灰質(zhì)泥巖及粉砂巖脆性礦物含量相對較高,且儲集空間類型多樣,與微裂縫構(gòu)成了“水平+垂直的裂縫網(wǎng)絡系統(tǒng)”。薄層粉砂巖夾層或紋層的粒間溶蝕微孔較為發(fā)育,溶蝕微孔可達微米級。青一段泥頁巖綜合評價為特低孔、特低滲儲層,其中又以粉砂質(zhì)泥巖、合灰質(zhì)泥巖及炭質(zhì)粉砂巖儲集物性較好.可望在頁巖油氣勘探中獲得突破
3、。關鍵詞:頁巖油氣;儲集特征;致密儲層;納米孔隙;松遼盆地北部中圖分類號:TE122.1文獻標志碼:ACharacteristicsofshalereservoirofthefirstmemberofQingshankouFormationinnorthernSongliaoBasinLIUBo,WANGFan2,RANQingchang,LIMei,DAIChunlei,WANGMeng(1.AccumulationandDevelopmentofUnconventional0ilandGas.StateKeyLaborator
4、yCultivationBaseJointly—constructedbyHeilongjiangProvinceandtheMinistryofScienceandTechnology,NortheastPetroleumUniversity,Daqing163318,Heilongjiang,China;2.Wellloggingcompany,DaqingDrillingandExplorationEngineeringCorporation,Daqing163412,Heilongjiang,China;3.Researc
5、hInstituteofExplorationandDevelopment,PetroChinaDaqingOilfieldCompanyLtd.,Daqing163318,Heilongjiang,China)Abstract:Thereservoirqualityisthekeyfactorforinfluencingtheenrichmentofshaleoilandgas.Throughcoreobservation,thinsectionidentification,scanningelectronicmicroscop
6、e,isothermaladsorptionandothermeans,thispaperstudiedthepetrologyandreservoircharacteristicsofoilshaleofthefirstmemberofQingshankouFormationinnorthernSongliaoBasin.Theresultshowsthattherocktypesofreservoirincludewith—siltmudstone,siltymudstone。limemudstoneandsihstone.T
7、hesiltymudstone,limemudstoneandsihstonearewithhighercontentsoffragilemineral,anddevelopedvarioustypesofreservoirspacewhichconstitutesacomplexeslevelandverticalfracturenet-system.Intergranulardissolvedporesaremoredevelopedinthinsiltstonelayersorlaminate,andtheirporosit
8、ycanreachmicronleve1.ThereservoirofthefirstmemberofQingshankouFormationbelongstoultra—lowporosityandultra-lowpermeabilityres